Coin-controlled lock.



W. S. FARNSWORTH.

COIN CONTROLLED LOCK.

APPLICATION rum) IEBJ! 1912.

1 Patented Dec. 8, 1914.

lllzzzle 5:23 14 12 fiwenfor,

STATES PATENT OFFICE.

WILLIS s. ramvswonrn, or SAN FRANCISCO, CALIFORNIA, Assmnon'ro com CONTROLLED, LOCK 00., or ra'iincisco, CALIFORNIA, A CORPORATION Oil? CALIFORNIA.

To'all (whom it mag c-0110mm:

I Be it known that 1, WILLIs S. FARMS- won'rrr, a citizen of the United States, res1d- 311 in the city and county of San Franranged that it can be operated only by the depositing of a proper coin or token.

A further object is to provide a coincontrolled device which is agiapted to be applied to the ordinary cylin er locks now generally in use, with but slight-alteration of the lock structure.

Another object is to provide a coin-controlled lock, in which the use of dogs, trip levers, pawls, or other tripping and releasing mechanisms are dispensed with, thereby producing a coin-controlled lock, which is simple in construction and eiiicient and reliable in operation.

Still another object is to provide a coin controlled lock, which is adapted to be readily set for coins of various denoniinations, and which is. so arranged that the coin employed in operating the lock will be exposed when the bolt of the lock is in its showing the coin in the'position assumed .following' its deposit.

locked position; and which is not liable to become choked by the insertion of addi tional coins.

Other objects will appear in the following specifications.

The invention consists of the parts and the construction and combination of parts, as hereinafter more fully described and claimed, having reference to the accompanying drawings, in which Figure 1 is a rear view of the lock with casing removed, showing the bolt in its retracted position and. locked against mov'einent. Fig. 2 is a similar view showing the bolt in its advanced position. Fig. 3 is a detail showing the bolt as retracted, and

Fig.4 is a similar view, illustrating the manner in which the "coin is employed'as a means for advancing the bolt and showing the bolt in its ad- Specification of Letters Patent.

COIN-CONTROLLED 'IzocK.

Patented Dec.

A'pplieation filed February 8, 1912. SerialjNo. 676,448.

vanced position. F ig. 5 is a horizontal section on the line XX, Fig. 1. Fig. 6 is a detail vertical section of a cylinder lock. Fig. 7 is a detail vertical section on the line Y--Y, Fig. 3.

In the drawings, A represents a face plate or escutcheon which is designed to be placed on the outer-face of the door or casing to which the ,lock is to be applied; this escutcheon plate being formed with a slot 2, for the reception of coins, opening to a coin chute 3- mounted on the back of the escutcheon'A.

A base plate 4, on which the lock mechanism is supported, is mounted on hack of the escutcheon A and is formed withan outwardly projecting flange 5 which is formed with a vertical slot 5 arrangedto receive the forward end of a bolt '6.'-, The bolt 6 parallels the plate 4 and is spaced a short distance therefrom, as shown in Fig.

and is supported and guided at its rear end upon a bracket 7 which extends beneath the lower edge of the bolt and is slotted to extend on each side of the bolt, as shown in Fig. 7. A in 8 is positioned on the bolt- 6 to strike thebracket 7 on its forward face to limit the rearward movement of the bolt.

Mounted on the base plate 4, above the bolt 6, is an ordinary cylinder lock of. any suitable type, which is here shown as consisting of a barrel B mounted in a cylindricaicasing C and having the usual loose pins or tumblers D and E which are actuated by the insertion of a key F in the keyhole G, extending longitudinally through the barrel B.

A bit, or projecting'pin 9, is suitably atv tached to the inner end of thebar'rel Bad jacent the base plate 4, and is normally positioned to extend at an angle into a peculiarly shapednotch or slot 10 formed in the upper edge of the bolt 6. The rear wall of the slot 10 extends, at anangle thefull depth of the slot, while the forward wall of the slot is' broken to form a horizontal shoulder 11 about midway of-the depth of the slot, as shown in Fig. 1. Pivotally mounted on the bit'9 is a link or actuator 12 which-extends parallel"with the bolt. 6 and is supported at its outer end in a guide '13 carried on the bolt. The outer end of the actuating link 12 is bent inwardly at right angles to form a finger 14 which extends through a slot or perforation 15 therefrom, the coin, will fall between the formed in the bolt 6, as shown inFig. 5. pins 17-18 and the finger 14 and be sup- ,Mounted on the bolt '6 and ported upon the pins 17-.18, when the bolt toizard the base plate 51 is a pair of space 6 -.is in "its retracted position, as shown in 5 P 75'the pin 16 be positioned on dotted lines in Fig. 3. I the bolt ad acent its lower 0 and a-short In the operation of this invention, a coin distance forward of the -pomt' where the 20 of the proper value, or a suitable token,

finger 14 extends through the bolt, and p the is in the slot 2 from which it passes pin 17 is ositioned adjacent the upper edge down the chute 3 and is delivered behind to of the be t near. its forward end. Mounted the bolt 6 only to come 'to rest on the re- 75 on the base plate 4a adjacent the pin 16 is a spectively movable and fixed pins 17-r-18,

. pin 18, which,v extends acrossgthje space beas just described; the pins 17-18' being tween the baseplate 4 and,the face of spaced apart according to the diameter of the bolt 6, and terminates adjacentthe lat the coin to be used. The key F is then operk5 fer, as shown Fig. 5.. e r Q ated to rotate the barrel B to turn the bit 9 30 its a means for preventing thebolt6being and the link-'12 thereon in the direction of advanced by the rotation of the lock barrel the arrow in'Fig. 3;. The link 12 is of such B, a hump 19 is formed on they lower edge length that the'finger 14 thereon'will strike 7 of the bolt, rearward of and adjacent the the edge of the vcoin at a point below its 20 bracket 7, in such position as to engage the middle, before the lower edge of the bit 9 5' "bracket 7 when; the bit 9 is brought to bear. engages the bolt 6. By this arrangement the v against the forward edge of the slot 10, as movement of the bit 9 is transmitted indicated: in dotted lines in Fig. 1. "The through the link 12, coin 26 and the pin 17 pressure .of the bit 9 against the forward to project the bolt 6 to its advanced posiedge of the slot 10 ,causes the hump. 19 to tion. The engagement of the finger. 14 on g tend to ride overthe supporting edgeofthe the-"link 12 yv th the coin 20, before the bit bracket '7, which action, however, is pre 9reaches the shoulder 11,.allows the hump vented by means of the shoulder llabutting 19 to ride over the bracket 7 the bit 9 enagainst .the loweredge of the advanced bit tering the lower portion of the slot 11 when o 9,'thus preventing the forward movement of the rear end of the bolt is moved upward 5 :th bolt, by the hump 19 passing over the bracket 7.

The slot 10 is formedin the, bolt 6 in such. When the .bolt G'reachesits advanced posiposition and of such :width as to limit the tion and'pressure is released on the key, the movement of the. hit 9', and thereby hold the coin 20 is released from the pin 18 and drops barrel B. in such position as to dispose the upon the pin 16, and is then supported on loo E out of alinement with the loose pins the pin 16 on the bolt 6 and against the rear mounted in the casing C, as shown in face of the flange 5, as shownin dotted lines Figl'1; the pins E bear" against the walls in Fig. 4, in which position it remains as inside the cylinder 0. en the parts are long as the bolt is advanced; the coin being 0 in this osition, the key F is blocked against exposed to vlew through a perforation 21 remove as is well known in locks of the formed in theplat'es A and 4. The key F Yale type, in which the key can only be may now be removed from the barrel B, as

- withdrawn when the keyhole and key stand, the pins D and E w1ll be in alinement.

I inacertain position, usually vertical, to dis- Should a second com be deposited in the v 5' pose the pins E in the barrel B in alinement chute 3, either before or after the advancing with the. ins D in the cylinder C, and allow of the bolt 6, 1t Wlll strike the co1n:20 and the pin to move up into the recesses holdwill pass behind the bolt 6 over the finger ing the pins D as they ride over the serra- 14, as ndicated in dotted l nes in Fig. 3,

v tions on the key F when the latter is inserted and will fall into any desired receptacle 56 or withdrawn. below the look. When the bolt s retracted, From the foregoing it will be seen that which is done by re-insert g the'key F in when the bolt 6 is in the retracted position, the barrel B and turnlng the latter in the shown in Fig. 1, it cannot be advanced, nor direction of the arrow in 4, to cause can the barrel B of the lock be turned suflithe bit 9 to engage the rear e e of the slot 55 ciently far to admit of the withdrawal of 10, the pm 16 will be withdrawn frombethe key F therein; the hump 19 acting in neath the com 20 and the latter will be alconjunction with th'e shoulder 11 to bhockl lovzed1 to drop into any suitable receptacle, 6 a ainst forward movement w ic no s own. glgc l ii g oi the bolt causes the fbrward The movement of the bolt.6 1s retarded by so edgeof the slot 10 to limit the movement of means of a plate spring 22 which is attached 12: the bit 9 on the barrel B. 4 to. the bolt 6 and bears against the'under The coin chute 3 leads to and terminates side of the bracket 1n such manner as to norabove the space between the bolt 6 and the mally retain the bolt in lowermost posibase plate 4, as shown in 1 and 2, in t on and at the same time prevent too easy 66 such manner that when. a com is discharged movement thereof. 131

Means are provided for indicating the number of operations of the bolt 6, which are here shown as consisting of a register 23 of any suitable description, the operating lever 24, which is engaged by a slot 25 formed in the lower edge of the bolt 6; the register operating in the well-known manner to indicate the number of times the lock has been used.

Having thus described my invention, what I claim and desire to secure by Letters Pat ent is- 1. In a lock, the combination of a casing, a sliding bolt, a coin chute, a pin on the casing and a complementary pin on the bolt arranged to intercept a coin when the bolt is in one position, a key operated member, a bit projecting from said member, an actua-- tor operated bysaid bit and arranged when the key-is turned in one direction to encounter the coin to shift the bolt, a projection on the bolt, a bracket on the casing with which said projection engages, and means on the bolt cooperating with said bit for preventing said projection from passing said bracket when no coin is inserted.

2. In a lock, the combination with a key and a key operated member, of a bolt provided with a notch, means for supporting a coin on the bolt, a bit on the key operated member, a link on said bit to engage the coin to advance the bolt, and means on the bolt cooperating with said bit to prevent movement of said bolt when no coin is supported by the bolt, said means comprising a shoulder on one side of said notch.

3. In a lock, the combination of a bolt, a

'key operated bit, means for. supporting a coin on the bolt, means on said. bit for engaging the coin to advance the bolt as the bit is advanced, a projection on the bolt, a casing for the bolt, a bracket on the casing engaging said projection and preventing unauthorized advancement of the bolt, and means on the bolt whereby the movement of the bit will be limited to prevent the disengagement of said projection and said bracket when a coin is not supported by the bolt.'

4. In a lock, the combination of a bit, a key for rocking said bit, a bolt having a notch engaging said bit to prevent turmng of the bit when no coin is inserted, pins on said bolt for supporting a coin, a link on said bit arranged to engage the coin to advance the bolt when the bit is rocked, means for limiting the movement of the bit to prevent the removal of the key and the advancem'ent of the bolt, when a coin is not supported on the bolt, consisting of a hump on the bolt, a bracket engaged by said hump, and a shoulder formed in the notch engageable with the underside of the bit.

5. In a lock, the combination of a bit, a key for rocking said bit, a bolt having a notch, pins for supporting a coin on the bolt, a link on said bit arranged to engage the coin to advance the bolt when the bit is rocked, means for limiting the movement of the bit to prevent the removal of the key 'and the advancement of the bolt, when a coin is not supported on the bolt, consisting of a hump on the bolt, a bracket engaged by said hump, and a shoulder formed in the .notch engageable with the underside of the bit, and means operated by thebolt for reg- Iiostiering the number of operations of the 6. In a coin controlled lock, the combination of a bit, a key for rocking said bit, a bolt having a notch, a shoulder on one side of said notch engaging said bit, pins for supporting a coin on the bolt, and a link on said bit arranged to engage the coin to advance the bolt when the bit is rocked, and means cooperating with said shoulder for limiting the movement of the bit to prevent the removal of the key and the advancement of the bolt when a coin is not supported on v witnesses.

' WILLIS S. FARNSVVORTH.

Witnesses:

JOHN H. Hnnnme, CHARLES EDELMAN. 

